| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package org.apache.cassandra.sidecar.utils; |
| |
| import io.vertx.core.MultiMap; |
| import io.vertx.core.file.FileSystem; |
| import org.apache.cassandra.sidecar.common.data.XXHash32Digest; |
| import org.jetbrains.annotations.NotNull; |
| |
| import static org.apache.cassandra.sidecar.common.http.SidecarHttpHeaderNames.CONTENT_XXHASH32; |
| import static org.apache.cassandra.sidecar.common.http.SidecarHttpHeaderNames.CONTENT_XXHASH32_SEED; |
| |
| /** |
| * Implementation of {@link DigestVerifier} to calculate the digest and match the calculated digest |
| * with the expected digest. |
| */ |
| public class XXHash32DigestVerifier extends AsyncFileDigestVerifier<XXHash32Digest> |
| { |
| protected XXHash32DigestVerifier(@NotNull FileSystem fs, @NotNull XXHash32Digest digest, |
| @NotNull DigestAlgorithm digestAlgorithm) |
| { |
| super(fs, digest, digestAlgorithm); |
| } |
| |
| public static XXHash32DigestVerifier create(FileSystem fs, MultiMap headers, |
| DigestAlgorithmProvider digestAlgorithmProvider) |
| { |
| XXHash32Digest digest = new XXHash32Digest(headers.get(CONTENT_XXHASH32), headers.get(CONTENT_XXHASH32_SEED)); |
| DigestAlgorithm digestAlgorithm = digestAlgorithmProvider.get(maybeGetSeedOrDefault(digest)); |
| return new XXHash32DigestVerifier(fs, digest, digestAlgorithm); |
| } |
| |
| protected static int maybeGetSeedOrDefault(XXHash32Digest digest) |
| { |
| String seedHex = digest.seedHex(); |
| if (seedHex != null) |
| { |
| return (int) Long.parseLong(seedHex, 16); |
| } |
| return 0; |
| } |
| } |